Friction-gear for railway-car draft-riggings.



1. F. OCONNOR.

. FRICTION GEAR FOR RAILWAY CAR DRAFT RIGG1NGS.

AFPLiCATION FILED MAT i. 18.19151 Patenfed Feb; 1918.

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2 SHEETS-SHEET l- L F. QCONNOR. I v rmcnow' GEAR FOB RAILWAY-CAR DRAFTBiGGlNGS.

v APPLICATION JF\ LEDMAR.1831915.

Patented Feb. 5, 1918..

2 suznsfsuat z.

I BY

vlm itiihl' it" (3 3 35i), ti l? itnpllentten :11

iii) all whom it may ooncem iiie it known that Jo l, ij ijonnom a citizen of the United States, re itlin Chicago, in the eonnty of Cool; nml irrmte of llliinois, have invented a eertnin new 't'iizfli nseful Improvement in llii'ietiei'nGenre ior Railway-Car Draft-Rigginge, of 'Whieh tl e following is it full, clear, eoneiee, and eizsnet description, reference being; hee 1'0 eompanyingg cl 'ztwiinge forming; pea. this specification.

"lFhis' invention relates to impio friction genre iloi railway gings. i 115-- An object of the invention is to provide it .1 l high capacity friction gear for :nilway eetr portion draft riggings and one in which the release enter ends is always certain.

The invention ftn'tliei'niore consists in the 330 improvements in the parts and devices :nnl in the novel combinations of the parts anti devices, as herein shown, ('lesei'iheii 01' .lee in nnnihei' as ngnr oni'er ends .l the end oi: the no tough inter t5 ther . who. the rim "I all eno '1 or nnn nin r claimed. is; n-orh ell nihn In the drawing forming; at part of Til t! Wt m ii'ely when hit-en o. A m

' ililQJ'S it are 5;: Enron and on wear plate 35 specification Figure l is atlongitudinal Yer tlcal sectional view of n (l aft I'LYTZHLV" enz- "b g Q 1 bodylng my improvements and shownw" the parts 111 toll release. Fin. 2 is it ln n'imntni sectional view of the structure shown in F1 1 the JitlllS bem Jilnstrnted in their i h a t -1 n full bufl iosltlon and in this fiejm'e the see- 'imlb iii orongh g l in HS- nniler niml lion 1-, Hi him the i:

"he on i ml rno'rririerat of l e \l aW htig 5H) illowor 5.535 IUM'UM the thrust liioelt illl l (hie in turn through the e "i- ":inl'ini: if'ollers gitinlinnlly of the oi the friction 95 the rollers in turn the .li,til,]0 21 until Figs. 3 and 4 are vertical v*eetionnl views l taken on the lines 3 -3 and 4-- l rest 'ieeti mly ill! diiil'fmi i l of Fig. 1. Fig. 5 is :1 detail end View oi the W Wedge and Fig 6 ilhnatrntrs another emhmlh an: r nlulr Hi ment of my improvenwnts. '2? to rnle r -30 In said drmvingaunl reiiwrin g' to Fig.5. 7

to 5 inclusive, 1U denotes the center Faillh the same in wing secured thereto remstops 11 and front steps 12. t rl hint-hi1): 1:5 oi? the usual type is provided lilil the same 111ml? 0 t5 connected with the g V z-1r proper liy means of roll at preferably cast steel yoke l l oonneeleii lo n Bi the dmw-har luv it uonpler hey if? whit-ii rm rein eiproentes in slots in the HlllS zrlhl .l'i'ont Men the 1 g t-m on the K i Jtlli. oinie to nntnlrietion hilt-w; nhnw while the i rio- 1mg eastings 12. The rear portion oi the new in nmln in Elli r supported by n Smlzlle or tie plate 1i? space Wllliii nernmlly t M5 The friction :nr proper coinpriseh :1 trio of the hioelc the e oi the fi'ietion thin shell. 1'? having: a spring chamber at the Show ir il 1 n i' 1 ti e shoes; will i rear r'nji thereof in which '15 located a spring .lnmowed i 18 winch eon'ij nlees an inner and an miter e011. E'lnld. shell if? 18 also provided ntuiy with the nt eoinzinnee on nnoen 1M ti: e ontma 7 ends of the friction shoes.

is uniformly augmented, due to the continuing compression of the spring and the final movement is limitedby engagement of the front follower 23 with the end of the friction shell and the limiting stops. Upon release, the friction shoes will remain stationary during initial portions of such action and the wedge, thrust block and anti-friction rollers will be moved outwardly independently of the shoes until the flange of the spring follower 22 engages the inner At this time, of course, the pressure against the friction shoes has been greatly reduced and the shoes can then be readily moved outward and this occurs under the influence of the spring, the shoes, wedge, rollers and thrust block all moving simultaneously until the full release is obtained.

In the construction shown in Fig. 6 the parts are quite similar to those illustrated in the other figures of the drawing, with the exception that the friction shoes 120 have plain inner faces upon which the anti-friction rollers'lQS) roll. In other Words, the anti-friction rollers 129' are given only a longitudinal movement during the initial action of the gear and not a combined longitudinal or axial and radial movement as in the other construction. With the arrangement shown in Fig. 6, the wedge 121 will travel lineally at the same rate as the follower. 123, whereas with the construction illustrated in the other figures, the lineal speed of the wedge 21 will be somewhat greater than that of the front follower 23,

7 due to the combined axialand radial travel of the anti-friction rollers 29. Otherwise the operation for both structures is the same both in application of the stresses and release.

I claim 1. A friction gear for draft riggings comprising a friction shell, shoes cooperable therewith, a wedge, a spring, a thrust block, and anti-friction rollers, each roller being interposed between and engaging the wedge,

shoes and thrust block.

2. A friction gear for draft riggings comprising a friction shell, friction shoes, :1 spring, a wedge acting directly against said spring, anti friction means between the wedge and friction shoes, and a thrust member normally out of engagement with said friction shoes and arranged, after an initial compression of the gear, to directly engage said shoes and transmit-pressure thereto in lines parallel to the axis of the gear.

3. A friction gear for draft riggings comprising a friction shell having a spring chamber and an integral rear follower, a spring contained within said chamber, friction shoes cooperable with said shell, a wedge acting directly against said spring, a front follower, anti-friction rollers interposed between said wedge and shoes and means for applying thrust from said follower to said anti-friction rollers in lines parallel with the axis of the gear, said friction shoes remaining stationarv durlnginitial portions of the actuation and release of the gear, said wedge, rollers, and front follower moving during saidzinitial portions of I the actuation.

l. A friction gear for draft riggings comprising a friction shell, a spring, a plurality 5. A friction gear for draft riggings comprising a friction shell, friction shoes'cooperable therewith and having their outer ends extended normally beyond the end of the friction shell, a follower having a thrust block on the inner face thereof, the latter being normally spaced from the adjacent ends of the friction shoes, a wedge located within the shoes, a spring directly acted upon by said wedge at one end, and antifriction means located in the space formed between the wedge, shoes and thrust block. 100' JOHN F. OCONNOR. Witnesses:

CARRIE G. RANZ, Gnonem VICKERY. 

